Hydrocyanic acid content of different parts of the sorghum plant
1938
Martin, J.H. | Couch, J.F. | Briese, R.R.
The hydrocyanic acid content of various parts of the sorghum plant was determined in material grown in Texas, New Mexico, Colorado, and Virginia in 1936 and 1937. The HCN content of sorghum leaves was 3 to 25 times that of the corresponding stalks of plants that had reached the boot stage. Heads and leaf sheaths were low in HCN. Upper (younger) leaves contained more HCN than lower (older) leaves. The proximal half of the leaf was higher in HCN than the distal (older) half. The HCN content of leaf blades was six times that of the midribs. The HCN content of stalk internodes decreased progressively downward, the lower (older) internodes containing only small quantities. Axillary (side) branches were much higher in HCN than the older main stalks and in most cases tillers (suckers) were higher in HCN than the older main stalks of the same plants.
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